- 05 Aug, 2010 1 commit
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Arnd Bergmann authored
This restricts the use of the big kernel lock to the i830 and i810 device drivers. The three remaining users in common code (open, ioctl and release) get converted to a new mutex, the drm_global_mutex, making the locking stricter than the big kernel lock. This may have a performance impact, but only in those cases that currently don't use DRM_UNLOCKED flag in the ioctl list and would benefit from that anyway. The reason why i810 and i830 cannot use drm_global_mutex in their mmap functions is a lock-order inversion problem between the current use of the BKL and mmap_sem in these drivers. Since the BKL has release-on-sleep semantics, it's harmless but it would cause trouble if we replace the BKL with a mutex. Instead, these drivers get their own ioctl wrappers that take the BKL around every ioctl call and then set their own handlers as DRM_UNLOCKED. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Signed-off-by:
Dave Airlie <airlied@redhat.com>
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- 04 Aug, 2010 8 commits
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Francisco Jerez authored
In most use cases the driver will be using the same static config all the time: interpreting i2c_board_info::platform_data as the default config we can can save the GPU driver a redundant set_config() call. Signed-off-by:
Francisco Jerez <currojerez@riseup.net> Signed-off-by:
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Chris Wilson authored
This is required should we ever attempt to use an io-mapping where KM_USER0 is verboten, such as inside an IRQ context. Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Eric Anholt <eric@anholt.net> Signed-off-by:
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Alex Deucher authored
R4xx also uses the atom add connector function, but underscan is only supported on avivo chips. Signed-off-by:
Alex Deucher <alexdeucher@gmail.com> Signed-off-by:
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Alex Deucher authored
New evergreen and r7xx ids. Signed-off-by:
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Chris Wilson authored
v2: Userspace (notably xf86-video-{intel,ati}) became confused when drmSetInterfaceVersion() started returning -EBUSY as they used a second call (the first done in drmOpen()) to check their master credentials. Since userspace wants to be able to repeatedly call drmSetInterfaceVersion() allow them to do so. v3: Rebase to drm-core-next. Signed-off-by: -
Dave Airlie authored
On non laptop systems we'll see these the whole time, so make them less important. Signed-off-by: -
Alex Deucher authored
This connector attribute allows you to enable or disable underscan on a digital output to compensate for panels that automatically overscan (e.g., many HDMI TVs). Valid values for the attribute are: off - forces underscan off on - forces underscan on auto - enables underscan if an HDMI TV is connected, off otherwise default value is auto. Signed-off-by:
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Alex Deucher authored
Prior to this patch the code was dividing the src_v by the dst_h and vice versa, rather than src_v/dst_v and src_h/dst_h. This could lead to problems in the calculation of the display watermarks. Signed-off-by:
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- 03 Aug, 2010 5 commits
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Dave Airlie authored
* 'intel/drm-intel-next' of /ssd/git/drm-next: (230 commits) drm/i915: Clear the Ironlake dithering flags when the pipe doesn't want it. drm/agp/i915: trim stolen space to 32M drm/i915: Unset cursor if out-of-bounds upon mode change (v4) drm/i915: Unreference object not handle on creation drm/i915: Attempt to uncouple object after catastrophic failure in unbind drm/i915: Repeat unbinding during free if interrupted (v6) drm/i915: Refactor i915_gem_retire_requests() drm/i915: Warn if we run out of FIFO space for a mode drm/i915: Round up the watermark entries (v3) drm/i915: Typo in (unused) register mask for overlay. drm/i915: Check overlay stride errata for i830 and i845 drm/i915: Validate the mode for eDP by using fixed panel size drm/i915: Always use the fixed panel timing for eDP drm/i915: Enable panel fitting for eDP drm/i915: Add fixed panel mode parsed from EDID for eDP without fixed mode in VBT drm/i915/sdvo: Set sync polarity based on actual mode drm/i915/hdmi: Set sync polarity based on actual mode drm/i915/pch: Set transcoder sync polarity for DP based on actual mode drm/i915: Initialize LVDS and eDP outputs before anything else drm/i915/dp: Correctly report eDP in the core connector type ...
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Alex Deucher authored
Intel variants don't support it. Signed-off-by:
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Alex Deucher authored
Logic was: if (mode0 && mode1) else if (mode0) else Should be: if (mode0 && mode1) else if (mode0) else if (mode1) Otherwise we may end up calculating the priority regs with unitialized values. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=16492Signed-off-by:
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Dave Airlie authored
I wrote this for the prime sharing work, but I also noticed other external non-upstream drivers from a large company carrying a similiar patch, so I may as well ship it in master. Signed-off-by: -
Eric Anholt authored
My fine DisplayPort output was getting ST dithering forever after having had the LVDS enabled at one point. Signed-off-by:Eric Anholt <eric@anholt.net>
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- 02 Aug, 2010 26 commits
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Alex Deucher authored
HPD is digital only. Signed-off-by:
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Alex Deucher authored
If we were not able to map the io bar in device init, don't attempt to unmap it in device fini. All radeons should have a io bar, so I doubt this would ever trigger, but just to be on the safe side... Pointed out by: Alberto Milone <alberto.milone@canonical.com> Signed-off-by:
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Jesse Barnes authored
Some BIOSes will claim a large chunk of stolen space. Unless we reclaim it, our aperture for remapping buffer objects will be constrained. So clamp the stolen space to 32M and ignore the rest. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=15469 among others. Adding the ignored stolen memory back into the general pool using the memory hotplug code is left as an exercise for the reader. Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by:
Simon Farnsworth <simon.farnsworth@onelan.com> Tested-by:
Artem S. Tashkinov <t.artem@mailcity.com> Signed-off-by:
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Chris Wilson authored
The docs warn that to position the cursor such that no part of it is visible on the pipe is an undefined operation. Avoid such circumstances upon changing the mode, or at any other time, by unsetting the cursor if it moves out of bounds. "For normal high resolution display modes, the cursor must have at least a single pixel positioned over the active screen.” (p143, p148 of the hardware registers docs). Fixes: Bug 24748 - [965G] Graphics crashes when resolution is changed with KMS enabled https://bugs.freedesktop.org/show_bug.cgi?id=24748 v2: Only update the cursor registers if they change. v3: Fix the unsigned comparision of x,y against width,height. v4: Always set CUR.BASE or else the cursor may become corrupt. Signed-off-by:Christian Eggers <ceggers@gmx.de> Cc: Christopher James Halse Rogers <chalserogers@gmail.com> Cc: stable@kernel.org Signed-off-by:
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Chris Wilson authored
When creating an object, we create the handle by which it is known to the process and which own the reference to the object. That reference to the new handle is what we want to transfer to the process, not the lost reference to the object; so free the local object reference *not* the process's handle reference. This brings i915_gem_object_create_ioctl() into line with drm_gem_open_ioctl() Signed-off-by:
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Chris Wilson authored
If we fail to flush outstanding GPU writes but return the memory to the system, we risk corrupting memory should the GPU recovery and complete those writes. On the other hand, if we bail early and free the object then we have a definite use-after-free and real memory corruption. Choose the lesser of two evils, since in order to recover from the hung GPU we need to completely reset it, those pending writes should never happen. Signed-off-by:
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Chris Wilson authored
If during the freeing of an object the unbind is interrupted by a system call, which is quite possible if we have outstanding GPU writes that must be flushed, the unbind is silently aborted. This still leaves the AGP region and backing pages allocated, and perhaps more importantly, the object remains upon the various lists exposing us to memory corruption. I think this is the cause behind the use-after-free, such as Bug 15664 - Graphics hang and kernel backtrace when starting Azureus with Compiz enabled https://bugzilla.kernel.org/show_bug.cgi?id=15664 v2: Daniel Vetter reminded me that kernel space programming is never easy. We cannot simply spin to clear the pending signal and so must deferred the freeing of the object until later. v3: Run from the top level retire requests. v4: Tested with P(return -ERESTARTSYS)=.5 from i915_gem_do_wait_request() v5: Rebase against Eric's for-linus tree. v6: Refactor, split and add a comment about avoiding unbounded recursion. Signed-off-by: -
Chris Wilson authored
Combine the iteration over active render rings into a common function. This is in preparation for reusing the idle function to also retire deferred free requests. Signed-off-by:
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Chris Wilson authored
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Chris Wilson authored
Even though "we have enough padding that it should be ok", round up the watermark entries to the next unit to be on the safe side... v2: Use the DIV_ROUND_UP macro v3: Spotted a few more missing round-ups. Signed-off-by:
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Chris Wilson authored
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Chris Wilson authored
Apparently i830 and i845 cannot handle any stride that is not a multiple of 256, unlike their brethren which do support 64 byte aligned strides. Signed-off-by:
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Zhao Yakui authored
Signed-off-by:
Zhao Yakui <yakui.zhao@intel.com> Reviewed-by:
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Zhao Yakui authored
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Zhao Yakui authored
When trying to set other display mode besides the fixed panel mode, the panel fitting should be enabled. This is similar to LVDS. Signed-off-by:
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Zhao Yakui authored
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Adam Jackson authored
Signed-off-by:
Adam Jackson <ajax@redhat.com> Signed-off-by:
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Adam Jackson authored
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Adam Jackson authored
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Adam Jackson authored
This makes them sort to the front in X, which makes them likely to be the primary outputs if you haven't specified a preference in your DE, which is likely to be what you want. Signed-off-by:
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Adam Jackson authored
Do this for both real eDP and for PCH_DP_D when used as the eDP connection. Signed-off-by:
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Adam Jackson authored
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Chris Wilson authored
Move the common routines into separate functions to not only increase readability, but also throwaway surplus code. In doing so, we review the calculation of the aspect preserving scaling and avoid the use of fixed-point until we need to calculate the accurate scale factor. v2: Improve comments as suggested by Jesse. 1 files changed, 105 insertions(+), 194 deletions(-) Signed-off-by:
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Chris Wilson authored
We already checked just a couple of lines above that we have found a fixed_panel_mode for the LVDS, so remove the surplus check. Signed-off-by:
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Jesse Barnes authored
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=29141 though the workaround itself is still a bit of a mystery. Tested-by:
Adam Hill <sidepipeuk@yahoo.co.uk> Signed-off-by:
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Chris Wilson authored
A side-effect of being able to use custom page allocations with the sg_table is that it cannot reap the partially constructed scatterlist if fails to allocate a page. So we need to call sg_free_table() ourselves if sg_alloc_table() fails. Signed-off-by:
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